Mountain resort image

South Twin Sister
Weather Forecast, United States

 

South Twin Sister Weather (Days 0-3):

Moderate rain (total 11mm), heaviest on Wed afternoon. Very mild (max 15°C on Thu afternoon, min 11°C on Wed morning). Wind will be generally light.

(Days 3-6):

Heavy rain (total 31mm), heaviest during Sun morning. Very mild (max 14°C on Sat morning, min 9°C on Sun night). Wind will be generally light.

AM PM night AM PM night AM PM night AM PM night AM PM night AM PM night
rain showers
thunderstorm
rain showers
clear
cloudy
light rain
light rain
rain showers
partially cloudy
partially cloudy
cloudy
heavy rain
heavy rain
light rain
partially cloudy
cloudy
partially cloudy
partially cloudy
Wind km/h
0 W0
5 NW5
5 ENE5
5 WSW5
5 W5
0 SSE0
5 SW5
5 WSW5
0 ESE0
5 SSW5
10 SSE10
15 SSE15
10 SSW10
5 SW5
0 E0
5 WSW5
5 WSW5
5 ESE5
rain shwrs risk tstorm rain shwrs clear cloudy light rain light rain rain shwrs some clouds some clouds cloudy heavy rain heavy rain light rain some clouds cloudy some clouds some clouds
Rain
Rain mm
1 4 1 - - 2 1 2 - - - 13 16 2 - - - -
Snow
Snow cm
- - - - - - - - - - - - - - - - - -
High °C
13 14 12 13 15 13 12 13 12 14 14 13 12 10 11 11 13 10
Low °C
11 14 11 11 15 12 12 13 12 12 13 12 11 10 9 10 11 9
Chill °C
13 14 12 13 15 13 12 13 12 14 14 12 10 9 11 11 13 10
Freezing level m
2350 2600 2700 2700 2750 2600 3100 3200 3600 3000 2800 2750 2250 2250 2500 3050 3150 3850
Sea lvl3000ft6000ft9000ft12000ft15000ft
mountain backdrop
133333445444312234677777667787645445131412131513121312141413121011111310
Sunrise
6:48 - - 6:50 - - 6:50 - - 6:52 - - 6:54 - - 6:54 - -
Sunset
- 7:14 - - 7:12 - - 7:09 - - 7:07 - - 7:06 - - 7:02 -

South Twin Sister Weather (Days 0-3):

The weather forecast for South Twin Sister is: Moderate rain (total 11mm), heaviest on Wed afternoonVery mild (max 15°C on Thu afternoon, min 11°C on Wed morning)Wind will be generally light.

South Twin Sister Weather (Days 3-6):

Heavy rain (total 31mm), heaviest during Sun morningVery mild (max 14°C on Sat morning, min 9°C on Sun night)Wind will be generally light.

Issued local time.

This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.

Live conditions reported by 5 closest weather stations

Weather StationTemp.WeatherWind
Cloud
Visibility
Cloud / Visibility
Lyman
19 km S
155m alt.
1 hour ago
12° C
Dry
0
Calm
(0 kph at 355).
Bellingham
25 km WSW
198m alt.
1 hour ago
12° C
Dry
2
Calm
(2 kph at 225).
Deming
25 km WNW
102m alt.
1 hour ago
12° C
Dry
0
Calm
(0 kph at 111).
Bellingham
27 km WSW
99m alt.
1 hour ago
11° C
Dry
0
Calm
(0 kph at 83).
Bellingham
30 km WSW
130m alt.
2 hours ago
12° C
-
Wind obs. (0 kph from 194 degs) was rejected
.

* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones. We also include passing Ship data if it is recorded close to South Twin Sister and within an acceptable time window.